GM (General Motors)

Having trouble finding the part that you need? Call 516-766-2223 or Email

General Motors (GM) engine control modules are programmed and flashed to meet your vehicles requirements. Most of the General Motors PCM, ECM and ECU module units are labeled plug & play and will not require additional programming. If you do not see the exact part that you are looking for, please call us as we have the nation's largest supply of vehicle controllers such as engine control modules, body control modules and much more.

BEST CUSTOMER SERVICE!!! Samantha was my customer service rep from the first call and she has been more than helpful! I received my unit within 3 days and haven't had any issues...

- Marisa Langly

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Mercs Service thinks this place is great. From the customer service with knowledgeable staff to the great pricing with excellent products. We are using Flagship One from now on for all our automotive computer needs. Thank you.

- Joelcoqui

My 96 Grand Cherokee Laredo 4.0L has been running GREAT since I ordered my PCM from FS1inc. Customer service folks called me TWICE to confirm the correct fitment and were flat out AWESOME!...

- Pete Kana

Flagship One Inc is a great company to work with! Very personable and very friendly. I would recommend them to anyone who needs car computer help!...

- Amy Leach

Bought two for two different vehicles and they worked great! Everything worked as advertised and will definitely be my first call for ecms...